<template>
  <el-row class="container">
    <!--头部-->
    <el-col :span="24" class="topbar-wrap">
      <div class="topbar-logo topbar-btn">
        <!--<a href="/"><img src="../assets/logo.png" style="padding-left:8px;"></a>-->
      </div>
      <div class="topbar-logos" v-show="!collapsed">
        <!--<a href="/"><img src="../assets/logotxt.png"></a>-->
      </div>
      <div class="topbar-title">
        <span style="font-size: 18px;color: #fff;">{{$t('t.title')}}</span>
      </div>
      <div class="topbar-account topbar-btn">
        <el-dropdown trigger="click">
          <span class="el-dropdown-link userinfo-inner"><i class="iconfont icon-user"></i> {{nickName}}  <i
            class="iconfont icon-down"></i></span>
          <el-dropdown-menu slot="dropdown">
            <el-dropdown-item>
              <router-link to="/user/profile"><span style="color: #555;font-size: 14px;">个人信息</span></router-link>
            </el-dropdown-item>
            <el-dropdown-item>
              <router-link :to="'/user/changepwd'"><span style="color: #555;font-size: 14px;">修改密码</span></router-link>
            </el-dropdown-item>
            <el-dropdown-item divided @click.native="logout">退出登录</el-dropdown-item>
          </el-dropdown-menu>
        </el-dropdown>
      </div>
    </el-col>

    <!--中间-->
    <el-col :span="24" class="main">

      <!--左侧导航-->
      <aside :class="{showSidebar:!collapsed}">
        <!--展开折叠开关-->
        <div class="menu-toggle" @click.prevent="collapse">
          <i class="iconfont icon-menufold" v-show="!collapsed"></i>
          <i class="iconfont icon-menuunfold" v-show="collapsed"></i>
        </div>
        <!--导航菜单-->
        <el-menu default-active="0" router :collapse="collapsed">
          <!--<menu-tree :nodes="$router.options.routes"></menu-tree>-->
          <template v-for="(item,index) in nodes" v-if="item.menuShow">
            <el-submenu v-if="!item.leaf" :index="index+''">
              <template slot="title"><i :class="item.iconCls"></i><span slot="title">{{item.name}}</span></template>
              <el-menu-item v-for="term in item.children" :key="term.path" :index="term.path" v-if="term.menuShow"
                            :class="$route.path==term.path?'is-active':''">
                <i :class="term.iconCls"></i><span slot="title">{{term.name}}</span>
              </el-menu-item>
            </el-submenu>

            <el-menu-item v-else-if="item.leaf&&item.children&&item.children.length" :index="item.children[0].path"
                          :class="$route.path==item.children[0].path?'is-active':''">
              <i :class="item.iconCls"></i><span slot="title">{{item.children[0].name}}</span>
            </el-menu-item>
          </template>
        </el-menu>
      </aside>

      <!--右侧内容区-->
      <section class="content-container">
        <div class="grid-content bg-purple-light">
          <el-col :span="24" class="content-wrapper">
            <transition name="fade" mode="out-in">
              <router-view></router-view>
            </transition>
          </el-col>
        </div>
        <!--<div class="grid-content bg-purple-light">
          <el-col :span="24" class="content-wrapper">
            <transition name="fade" mode="out-in">
              <router-view></router-view>
            </transition>
          </el-col>
        </div>-->
      </section>


    </el-col>

  </el-row>
</template>

<script>
  import {bus} from '../bus.js'
  import API from '../api/api_user';

  import {
    getUser,
    getRouters,
    getRoutersLoaded,
    setRoutersLoaded,
    removeUser,
    removeToken,
    removePermissions,
    removeRouters,
    removeRoutersLoaded
  } from '../utils/session'

  export default {
    name: 'home',
    data() {
      return {
        nickName: '',
        collapsed: false,
        nodes: this.$router.options.routes
      }
    },
    created() {
      bus.$on('setNickName', (text) => {
        this.nickName = text;
      })

      bus.$on('goto', (url) => {
        if (url === "/login") {
          removeUser();
          window.location.href="/";
          return;
        }
        this.$router.push(url);
      })

      //这里没有直接使用this.$router.options.routes，是因为addRoute的路由规则，在这里this.$router.options.routes获取不到
      //有兴趣的可以看一下源码，是为什么获取不到，但是却又有规则了
      //另外在开发的时候，可能由于是热部署，也会不断重复的给nodes添加元素，造成导航条有重复的，简单解决，可以设置一个开关
      let isLoadNodes = getRoutersLoaded();
      if (!isLoadNodes) {
        let routers_a = sessionStorage.getItem("routers-setting");
        let data = JSON.parse(routers_a);
        this.nodes.push(...data);
        setRoutersLoaded('true');
      }
    },
    methods: {
      handleOpen() {
        //console.log('handleopen');
      },
      handleClose() {
        console.log('handleclose');
      },
      //折叠导航栏
      collapse: function () {
        this.collapsed = !this.collapsed;
      },
      showMenu(i, status) {
        this.$refs.menuCollapsed.getElementsByClassName('submenu-hook-' + i)[0].style.display = status ? 'block' : 'none';
      },
      logout() {
        let that = this;
        this.$confirm('确认退出吗?', '提示', {
          confirmButtonClass: 'el-button--warning'
        }).then(() => {
          //确认
          that.loading = true;
          API.logout().then(function (result) {
            that.loading = false;
            removeUser();

            //that.$router.go('/login'); //用go刷新
            window.location.href="/";
          }, function (err) {
            that.loading = false;
            that.$message.error({showClose: true, message: err.toString(), duration: 2000});
          }).catch(function (error) {
            that.loading = false;
            console.log(error);
            that.$message.error({showClose: true, message: '请求出现异常', duration: 2000});
          });
        }).catch(() => {
        });
      }
    },
    mounted() {
      let user = getUser();
      if (user) {
        user = JSON.parse(user);
        this.nickName = user.nickName || '';
      }
    },
    components: {

    }
  }
</script>
<style scoped lang="scss">
  .container {
    position: absolute;
    top: 0px;
    bottom: 0px;
    width: 100%;
  .topbar-wrap {
    height: 50px;
    line-height: 50px;
    background: #373d41;
    padding: 0px;
  .topbar-btn {
    color: #fff;
  }
  /*.topbar-btn:hover {*/
  /*background-color: #4A5064;*/
  /*}*/
  .topbar-logo {
    float: left;
    width: 59px;
    line-height: 26px;
  }
  .topbar-logos {
    float: left;
    width: 120px;
    line-height: 26px;
  }
  .topbar-logo img, .topbar-logos img {
    height: 40px;
    margin-top: 5px;
    margin-left: 2px;
  }
  .topbar-title {
    float: left;
    text-align: left;
    width: 200px;
    padding-left: 10px;
    border-left: 1px solid #000;
  }
  .topbar-account {
    float: right;
    padding-right: 12px;
  }
  .userinfo-inner {
    cursor: pointer;
    color: #fff;
    padding-left: 10px;
  }
  }
  .main {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    position: absolute;
    top: 50px;
    bottom: 0px;
    overflow: hidden;
  }
  aside {
    min-width: 50px;
    background: #333744;
  &::-webkit-scrollbar {
     display: none;
   }
  &.showSidebar {
     overflow-x: hidden;
     overflow-y: auto;
   }
  .el-menu {
    height: 100%; /*写给不支持calc()的浏览器*/
    height: -moz-calc(100% - 80px);
    height: -webkit-calc(100% - 80px);
    height: calc(100% - 80px);
    border-radius: 0px;
    background-color: #333744;
    border-right: 0px;
  }
  .el-submenu .el-menu-item {
    min-width: 60px;
  }
  .el-menu {
    width: 180px;
  }
  .el-menu--collapse {
    width: 60px;
  }
  .el-menu .el-menu-item, .el-submenu .el-submenu__title {
    height: 46px;
    line-height: 46px;
  }
  .el-menu-item:hover, .el-submenu .el-menu-item:hover, .el-submenu__title:hover {
    background-color: #7ed2df;
  }
  }
  .menu-toggle {
    background: #4A5064;
    text-align: center;
    color: white;
    height: 26px;
    line-height: 30px;
  }
  .content-container {
    background: #fff;
    flex: 1;
    overflow-y: auto;
    padding: 10px;
    padding-bottom: 1px;
  .content-wrapper {
    background-color: #fff;
    box-sizing: border-box;
  }
  }
  }
</style>
